road_typicals_MATOC.pdf

FOREST LOCATION VICINITY MAP

SHEET OF

United States Department of Agriculture

Forest Service

TONGASS NATIONAL FOREST

TONGASS NATIONAL FOREST

648 MISSION STREET

KETCHIKAN, AK 99901

ROAD MAINTENANCE IDIQ

RECOMMENDED BY:

APPROVED:

ROADS PROGRAM MANAGER

FOREST ENGINEER DATE

DATE

DIRECTOR OF ENGINEERING DATE

FOREST SUPERVISOR DATE

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TONGASS NATIONAL FOREST

INDEX OF SHEETS

SHEET SHEET TITLE

1 COVERSHEET

2 VICINITY MAPS

3 TYPICAL ROADWAY

4 TYPICAL X-SECTION

5 LOG CULVERT

LOG STRINGER BRIDGE (PERMANENT)

LOG STRINGER BRIDGE (TEMPORARY)

8 LOG STRINGER BRIDGE REMOVAL

9 TYPICAL CULVERT INSTALLATION

10 TYPICAL MODULAR BRIDGE INSTALLATION

11 BRIDGE RESURFACING

12 TYPICAL DRIVEABLE WATERBAR INSTALLATION

13 TYPICAL NON-DRIVEABLE WATERBAR INSTALLATION

14 OHV FORD CROSSING

15 TYPICAL ROCK BUTTRESS

16 TYPICAL PIT & QUARRY DEVELOPMENT

17 TYPICAL EROSION CONTROL

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

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ALASKA REGION

2020 ROAD

MAINTENANCE

IDIQ

TONGASS NATIONAL

FOREST

VICINITY MAPS

01/30/2020

CJL

CJL

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2%

2%

3-5%

DESIGN ROADWAY WIDTH

EXISTING GROUND

RECONDITIONED SUBGRADE

COMPACTED DEPTH AGGREGATE LIFT

EXISTING

DESIGN ROADWAY WIDTH

EXISTING GROUND

RECONDITIONED SUBGRADE

COMPACTED DEPTH AGGREGATE LIFT

TYPICAL OVERLAY SECTION - CROWNED

OUTSLOPED SECTION

INSLOPED SECTION

SEE NOTE

NOTE: IN THOSE AREAS WHERE THE EXISTING ROAD, AFTER

RECONDITIONING IS WIDER THAN THE DESIGNED WIDTH OF

AGGREGATE, CENTER THE LIFT OF AGGREGATE ON ROAD

SURFACE AND FEATHER TO EXISTING SHOULDERS. WHEN

PLACING THE ADDITIONAL XXXX WIDTH OF AGGREGATE IN

TURNOUT AREAS AND SECTIONS REQUIRING CURVE

WIDENING, PLACE ADJACENT TO CENTERLINE LIFT AND

COMPACT TOGETHER.

NOTE: OUTSLOPED ROADS SHOULD BE USED WHEN ROAD

GRADES ARE GENTLE TO MODERATE (0% TO 8%) AND WHERE

CUTSLOPES ARE DRY. OUTSLOPED ROADS SHOULD BE

CONSTRUCTED WITH ROLLING DIPS FOR DRAINAGE. THERE

SHOULD BE NO DITCH ON THE INBOARD SIDE OF THE

OUTSLOPED ROAD.

NOTE: INSLOPED ROADS SHOULD BE USED WHEN ROAD

GRADES ARE MODERATE TO STEEP (6% AND UP) AND WHERE

TERRAIN MAY BE STEEP OR SLIPPERY. INSLOPED ROADS

ARE ALSO IDEAL FOR HIGHLY ERODIBLE AREAS. EXTRA

ATTENTION SHOULD BE PAID TO ESTABLISHING DITCHES AND

DRAINAGE FOR INSLOPED ROADS.

3-5%

DESIGN ROADWAY WIDTH

EXISTING GROUND

RECONDITIONED SUBGRADE

COMPACTED DEPTH AGGREGATE LIFT

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

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2020 ROAD

MAINTENANCE

IDIQ

TONGASS NATIONAL

FOREST

TYPICAL ROADWAY

01/30/2020

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EXISTING GROUND

3' ROADBED WIDTH 5' MIN

VARIABLE SLOPE AS

DESIGNATED/STAKED

DECK MERCHANTABLE TIMBER

LIMBS, TOPS, SLASH,

CULL LOGS AND

ROADWAY EXCAVATION

EXCESS TO DEBRIS MAT

OR BENCH REQUIREMENTS

BORROW AND/OR SUITABLE ROCK EXCAVATION

PREPARED GROUND SURFACE, DEBRIS MAT

EMBANKMENT: BORROW EXCAVATION TO BE USED ONLY

AFTER ALL AVAILABLE SUITABLE EXCAVATION,

CONSTRUCTION SLASH AND DEBRIS HAS BEEN UTILIZED

2' MIN

NOTE: STUMPS SHALL BE GRUBBED AND

CONSTRUCTION SLASH/DEBRIS REMOVED AT

A MINIMUM OF 5' FROM THE CONSTRUCTION

ROAD SHOULDER

TYPICAL SIDEHILL SECTION

EXCAVATION

SUBGRADE

2' MIN

10' 5' MIN

VARIABLE CLEARING LIMITS

CLEARING, UNDISTURBED STUMPS

AND CLEARING DEBRIS, SEE NOTE 3

SUBGRADE

BORROW

TYPICAL OVERLAY SECTION

GRUBBING LIMITS 5' MIN

VARIABLE CLEARING LIMITS

ORIGINAL GROUND

VARIABLE SLOPE AS

DESIGNED/STAKED

EXCAVATION

PREPARED GROUND SURFACE,

DEBRIS MAT OR BENCH

EMBANKMENT, VARIABLE DEPTH

ROCK MATERIAL, BORROW AND/OR

SUITABLE ROCK EXCAVATION

EXCESS EXCAVATED

MATERIAL

DECK MERCHANTABLE

TIMBER TYP

TYPICAL THROUGH CUT SECTION

NOTES

1. PROFILE ELEVATIONS ARE SHOWN TO SUBGRADE.

2. CROWN TRAVELED WAY OR ROADBED 2%.

3. UNDISTURBED STUMPS AND OTHER CLEARING DEBRIS IN EMBANKMENT

AREAS MAY BE LEFT IN PLACE IF THEY DO NOT EXTEND CLOSER THAN 24"

TO ANY SUBGRADE. (REFERENCE SPEC. 201.05B)

4. UNLESS OTHERWISE INDICATED OR STAKED, ALL FILL SLOPES SHALL BE

1:1.25 AND ALL CUT SLOPES SHALL BE 1:1 OR AS SHOWN IN THE STAKING

NOTES.

5. ROAD NO. STA. TO STA. TOLERANCE CLASS FINISH METHOD

3000 BOP TO EOP K A

20'

16'

25' 30' 25'

25' 50' 25'

R

25' 50' 25'

50' 80' 50'

ROAD DESIGN SPEED = 10 MPH

ROAD DESIGN SPEED = 20 MPH

ROAD DESIGN SPEED = 30 MPH

10' TYP

5' TYP

TURNOUT/PULLOUT DETAILS

16'

TURNOUT/PULLOUT DETAILS

50' 25'

8'

T

O

INTERSECTION DETAILS

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

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ALASKA REGION

2020 ROAD

MAINTENANCE

IDIQ

TONGASS NATIONAL

FOREST

TYPICAL CROSS

SECTION

01/30/2020

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TYPICAL LOG CULVERT INLET

18"

M I N

EMBANKMENT

MIDSPAN CABLE WRAP,

" CABLE

24"

SEE NOTE 2

EXISTING GROUND

#4 REBAR, 18" TO 24" LONG

(DEPENDING ON STRINGER Ø)

OR FIGURE-EIGHT CABLE WRAP

POLYPROPYLENE

FABRIC BLANKET

12" MIN. LOG Ø

TRAVELED WAY

TRAVELED WAY

TRAVELED WAY

TRAVELED WAY

18"

M I N

24"

SEE NOTE 2

24"

M I N

EMBANKMENT

MIDSPAN CABLE WRAP,

" CABLE

POLYPROPYLENE

FABRIC BLANKET

EXISTING GROUND

TYPICAL LOG CULVERT OUTLET

TYPICAL LOG CULVERT INLET

DOWNHILL LOG TIED INTO BANK

TO DIVERT WATER INTO CULVERT

ROAD SURFACE

CULVERT SLOPE 2% GREATER

THAN SLOPE OF ROAD

24" MIN.

18"

M I N

24"

M I N

EXISTING GROUND

24" MIN. Ø

SILL LOG

TRAVELED WAY

POLYPROPYLENE FABRIC BLANKET

NOTCH SILL LOG 4" MIN.

AT ENDS TO FIT OUTSIDE

DECKING LOGS

6" MIN. Ø DECKING LOGS,

CABLE-WRAPPED AND CLAMPED

FIGURE-EIGHT WRAP DECKING LOGS AT

ENDS OF CULVERT W/

" MIN. CABLE

TO AT LEAST A POINT VERTICALLY

BELOW THE SHOULDER OF THE ROADWAY

SIDE VIEW - ALT. CABLE-LASHED LOG CULVERT

12" MIN. Ø LOG

24" MIN. Ø

SILL LOG

18" MIN.

RIPRAP CULVERTS THAT SPILL

ONTO SIDE SLOPES BELOW

OUTLET, MIN. RIPRAP SIZE

CLASS 2

SLOPE 2%

GREATER THAN

TRAVELED W

AY

SLOPE 2%

GREATER THAN

TRAVELED W

AY

VARIABLE SLOPE

EXISTING GROUND

48" MIN.

CATCH BASIN

EXISTING STREAMBED

24" MIN. Ø

SILL LOG

CONSTRUCT SLOPE AS STAKED

OUTLET AT STAKED ELEVATION

18"

M I N

RIPRAP OUTLET WHERE

REQUIRED, SIZE CLASS 2,

MIN.

TYPICAL LOG CULVERT INSTALLATION

SIDEHILL SECTIONS

OVERLAY SECTIONS

(THIS DRAWING NOT TO SCALE)

24" MIN. Ø

SILL LOG

24" MIN. Ø

SILL LOG

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

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ALASKA REGION

2020 ROAD

MAINTENANCE

IDIQ

TONGASS NATIONAL

FOREST

LOG CULVERT

INSTALLATION

01/30/2020

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1. CULVERT LENGTHS, AS SHOWN ON THE PLANS, ARE APPROXIMATE

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AND ARE SUBJECT TO REVISION BY THE ENGINEER.

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2. MINIMUM LOG CULVERT SPAN SHALL BE GREATER THAN OUTSIDE

AutoCAD SHX Text BANKFULL WIDTH. SILL HEIGHT 2 x BANKFULL DEPTH. MAX. 3 FEET.

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3. LOG CULVERTS SHALL BE INSTALLED BEFORE ROCK OVERLAY

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IS PLACED.

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4. RIP RAP, WHEN DESIGNATED ON THE PLANS, SHALL EXTEND A

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MINIMUM OF ONE FOOT BEYOND THE SIDES OF THE CULVERT.

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CULVERTS SHALL BE CONSTRUCTED IN ACCORDANCE WITH LINES,

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GRADES, AND DIMENSIONS SHOWN ON DRAWINGS AND/OR AS

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STAKED ON THE GROUND.

AutoCAD SHX Text %%uGENERAL NOTES

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STRINGER DIAMETER

AutoCAD SHX Text For Hemlock, Sitka Spruce, AutoCAD SHX Text Yellow Cedar (no Red Cedar)

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(FEET)

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2 FT

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5 FT

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5 FT

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9 FT

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10 FT

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5. WHEN REBAR IS USED TO CONNECT STRINGERS TO SILL LOG,

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A CABLE WRAP AT MIDSPAN WILL BE USED ALONG THE FULL

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LENGTH OF THE LOG CULVERT.

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6. CABLE WRAPS SHALL BE STAPLED ON EACH STRINGER.

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PLAN VIEW

ABUTMENTS, CENTER,OVER 36-FT

and QUARTER POINTS

LASHING REQUIREMENTS

UNDER 20-FT

20-FT to 36-FT

FOR SPANS

ABUTMENTS and MIDSPAN ABUTMENTS and THIRD POINTS

LASH AT THESE LOCATIONS

PLACE LOG STRINGERS BUTT TO TIP. PENETRATING

FASTENERS or CLAMPS (6" MIN. EMBEDMENT LENGTH) MAY

BE USED UNLESS OTHERWISE INDICATED IN WRITING BY THE

C.O.

WHERE MUDSILLS ARE USED,

THEY MUST BELONG ENOUGH TO

CONTAIN THE APPROACH FILL

TOE OF FILL

TIE BACK LOG

EDGE OF ROAD

T

O

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A V

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A Y

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TOE OF FILL

WING LOGS 45° TO STREAM,

LONG ENOUGH TO CONTAIN FILL

EDGE OF STREAM

BRIDGE GRADE 1/2% (MIN.) TO 5% (MAX.)

STABILIZER LOG

(ALT. INSTALLATION)

SHOT ROCK FILL

TIE BACK LOG

MUD SILL LOG

WIRE ROPE

LOG STRINGER

EXISTING GROUND

PLACE RIPRAP IF REQUIRED BY THE CO OR

SHOWN ON THE DRAWINGS. PLACEMENT OF

RIPRAP OR OTHER INSTREAM WORK IS

NOT ALLOWED UNLESS APPROVED IN WRITING

IN ADVANCE BY THE CO. INSTREAM WORK OR

EQUIPMENT CROSSINGSARE NORMALLY ALLOWED

ONLY AS SHOWN ON THE PLAN DRAWINGS.

PROVIDE 5' MIN. CLEARANCE FOR ICE & DEBRIS

AS DETERMINED BY THE CO

CHINK W/ POLES OR LARGE ROCKS

LOG CRIB ABUTMENT

ELEVATION

LOG STRINGER BRIDGE TYPICAL INSTALLATION

SECTION NEAR MIDSPAN

SECTION NEAR MIDSPAN - ALTERNATE INSTALLATION W/ STABILIZER LOG

BROW LOG

BROW

LOG

M

I N

M

A X

LOG STRINGERS -

SEE TABLE FOR SIZE

LASH STRINGERS & BROW LOGS

TOGETHER W/ 3/4" Ø WIRE ROPE

POLES FOR CHINKING

BETWEEN STRINGERS

TYPE II-A SEPARATION GEOTEXTILE

SHOT ROCK FILL - SEE

MATERIAL NOTE 1 FOR DEPTH

STABILIZER LOG - 12" MIN.Ø NOTCH & LASH TO BROW LOGS OR EXTERIOR

STRINGERS SO THAT ALL STRINGERS BEAR ON STABILIZER LOG

SPAN

LENGTH

(FEET)

MATERIAL NOTES:

DIAMETERS ARE GIVEN IN INCHES, REPRESENTING

AVERAGE MIDSPAN DIAMETERS INSIDE BARK. REQUIRED

DIAMETERS WILL VARY WITH DEPTH OF ROCK SURFACING.

DEPTHS OF ROCK USED TO CALCULATE THIS TABLE ARE:

SPANS TO 20 FEET = 12 INCH ROCK

SPANS 20 FEET TO 36 FEET = 9 INCH ROCK

SPANS OVER 36 FEET = 6 INCH ROCK

LOGS TO BE STRAIGHT, SOUND, AND FREE OF DECAY,

EXCESSIVE TWIST (SPIRAL GRAIN MORE THAN 1 in 8) AND

ALL DEFECTS THAT MAY CONSIDERABLY AFFECT STRENGTH.

KNOT SIZE IN THE MIDDLE HALF OF THE LENGTH NOT TO

EXCEED 5". DO NOT USE STRINGERS w/ LARGE KNOTS

OPPOSITE EACH OTHER.

ROCK IN SHOT ROCK SURFACING TO BE SMALLER THAN

1/2 THE SURFACING DEPTH.

1-INCH

2-INCH

SMALLER

SMALLER

VEHICLE TYPE

HS20 U54

FOR

HEMLOCK

U102U80

4.

3.

2.

1.

APPROX. STRINGER DIAMETERS

(INCHES)

SITKA SPRUCE/HEMLOCK

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

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ALASKA REGION

2020 ROAD

MAINTENANCE

IDIQ

TONGASS NATIONAL

FOREST

LOG STRINGER BRIDGE

INSTALLATIOIN

(PERMANENT)

01/30/2020

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MUDSILL MUST BE

LONG ENOUGH TO

CONTAIN FILL

TOE OF FILL

F L O

W

T R

A V

E L E

D

W

A Y

W I D

T H

T

O

PLACE LOG STRINGERS BUTT TO TIP. PENETRATING

FASTENERS or CLAMPS (6" MIN. EMBEDMENT LENGTH) MAY

BE USED UNLESS OTHERWISE INDICATED IN WRITING BY THE

C.O.

LASH AT THESE LOCATIONS

ABUTMENTS and THIRD POINTS ABUTMENTS and MIDSPAN

LASHING REQUIREMENTS

and QUARTER POINTS

ABUTMENTS, CENTER,

FOR SPANS

20-FT to 36-FT

UNDER 20-FT

OVER 36-FT

LOG STRINGER

WIRE ROPE

MUDSILL LOG

SHOT ROCK FILL

EXISTING GROUND

PLACE RIPRAP IF REQUIRED BY THE CO

OR SHOWN ON THE DRAWINGS. SEE

CONSTRUCTION NOTE 3 FOR NECESSARY

IN-STREAM WORK

PROVIDE CLEARANCE

FOR ICE & DEBRIS

AS DETERMINED BY THE CO

BRIDGE GRADE 1/2% (MIN.) TO 5% (MAX.)

PLAN VIEW

ELEVATION

SHORT-TERM LOG STRINGER BRIDGE TYPICAL INSTALLATION

(FOR USE THREE YEARS OR LESS)

SECTION NEAR MIDSPAN

SHOT ROCK FILL - SEE

MATERIAL NOTE 1 FOR DEPTH

TYPE II-A SEPARATION GEOTEXTILE

BROW LOG

POLES FOR CHINKING

BETWEEN STRINGERS

LASH STRINGERS & BROW LOGS

TOGETHER W/ 3/4" Ø WIRE ROPE

LOG STRINGERS -

SEE TABLE FOR SIZE

M

I N

M

A X

BROW

LOG

MATERIAL NOTES:

DIAMETERS ARE GIVEN IN INCHES, REPRESENTING

AVERAGE MIDSPAN DIAMETERS INSIDE BARK. REQUIRED

DIAMETERS WILL VARY WITH DEPTH OF ROCK SURFACING.

DEPTHS OF ROCK USED TO CALCULATE THIS TABLE ARE:

SPANS TO 20 FEET = 12 INCH ROCK

SPANS 20 FEET TO 36 FEET = 9 INCH ROCK

SPANS OVER 36 FEET = 6 INCH ROCK

LOGS TO BE STRAIGHT, SOUND, AND FREE OF DECAY,

EXCESSIVE TWIST (SPIRAL GRAIN MORE THAN 1 in 8) AND

ALL DEFECTS THAT MAY CONSIDERABLY AFFECT STRENGTH.

KNOT SIZE IN THE MIDDLE HALF OF THE LENGTH NOT TO

EXCEED 5". DO NOT USE STRINGERS w/ LARGE KNOTS

OPPOSITE EACH OTHER.

ROCK IN SHOT ROCK SURFACING TO BE SMALLER THAN

1/2 THE SURFACING DEPTH.

4.

3.

2.

1.

CONSTRUCTION NOTES:

CONSTRUCT BRIDGE TO ELEVATIONS AND ALIGNMENTS SHOWN ON THE DRAWINGS or STAKED ON THE GROUND.

UNLESS OTHERWISE REQUIRED, USE A SINGLE MUDSILL AT EACH ABUTMENT. PLACE MUDSILL ON SHOT ROCK

OR FIRM NATIVE MATERIAL AS DIRECTED BY THE C.O.

PLACEMENT OF RIPRAP or OTHER INSTREAM WORK IS NOT ALLOWED UNLESS APPROVED IN WRITING IN ADVANCE BY THE C.O.

INSTREAM WORK or EQUIPMENT CROSSINGS ARE NORMALLY ALLOWED ONLY AS SHOWN ON THE PLAN DRAWINGS.

EQUIPMENT CROSSINGS MUST BE APPROVED IN WRITING BY THE C.O.

BRIDGE REMOVAL SHALL BE ACCOMPLISHED AS FOLLOWS:

REMOVE SHOT ROCK FROM BRIDGE DECK USING BACKHOE AND HAND TOOLS.

LAY BACK FILLS FACING THE STREAM TO A 1 (vertical) to 1-1/2 (horizontal) (max) SLOPE.

INDIVIDUALLY LIFT EACH STRINGER LOG WITHOUT CAUSING STREAM DISTRUBANCE.

PLACE LOGS IN DESIGNATED DECKING AREA. REMOVE DRIVEABLE SIDE(S) MUDSILL LOG(S).

BLOCK CROSSING AT DRIVEABLE END(S) WITH A TANK TRAP OR OTHER METHOD APPROVED BY THE C.O.

SEED AND FERTILIZE ALL DISTRUBED AREAS.

c)

e) d)

a) b)

5.

4.

2.

3.

1.

VEHICLE TYPESPAN

U54

LENGTH

(FEET) HS20 U80 U102

APPROX. STRINGER DIAMETER

(INCHES)

SITKA SPRUCE

FOR HEMLOCK USE 1 INCH SMALLER DIAMETER

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

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2020 ROAD

MAINTENANCE

IDIQ

TONGASS NATIONAL

FOREST

LOG STRINGER BRIDGE

INSTALLATION

(TEMPORARY)

01/30/2020

X.XXX

7 17

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BROW LOG

SILL LOG

ROAD SURFACE

STINGER

STRINGER

CABLE WRAP

STINGER

BROW LOG

CABLE WRAP

STRINGER

SILL LOG

ROAD SURFACE

TERRACE MIN. 3 FT. WIDE

PLACEMENT OF EXCAVATED

ROADBED MATERIAL

REMOVE ALL CABLE, STAPLES AND OTHER

HARDWARE. HAUL AND DECK MERCHANTABLE

TIMBER TO LOCATION DESIGNATED BY THE CO.

AFTER REMOVING ALL HARDWARE DECK

UNMERCHANTABLE TIMBER ON DOWNHILL SIDE

OF ROAD AT LOCATION DESIGNATED BY THE CO.

GRASS SEED AND

FERTILIZE ALL EXCAVATED

AREAS.

DISPOSAL OF ALL CABLE, STAPLES AND OTHER

HARDWARE USING METHOD (a), SUBSECTION

203.05

ROADFILL TO BE EXCAVATED A MINIMUM

WIDTH OF 2' BEYOND NATURAL STREAM

CHANNEL ON BOTH SIDES. SLOPES TO BE

LAID BACK TO 2(H):1(V)

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

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ALASKA REGION

2020 ROAD

MAINTENANCE

IDIQ

TONGASS NATIONAL

FOREST

LOG STRINGER BRIDGE

REMOVAL

01/30/2020

X.XXX

8 17

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TYPICAL CULVERT INSTALLATION AT LIVE STREAMS

24"

12" MIN.

C

L

RIPRAP,

SEE NOTE 7

EXIST.

STREAMBED

1/2 PIPE

Ø

GRADE OF CMP SHALL BE SAME AS EXISTING

STREAM CHANNEL UNLESS OTHERWISE SHOWN

ON THE DRAWINGS

SUBGRADE

1.25

SELECT BACKFILL MATERIAL FOR BEDDING

REFER TO FP-14 - SECTION 602,

FP-14 - SECTION 209.09, 209.10

12" MIN.

12" MIN.

1/2 PIPE Ø

24"

24" DEPTH

L

C

SUBGRADE

1.25

VARIABLE SLOPE

EXISTING STREAMBED

1 1/2 PIPE

Ø

OR 5' MIN. CATCH BASIN

SELECT BACKFILL MATERIAL FOR BEDDING

REFER TO FP-14 - SECTION 602,

FP-14 - SECTION 209.09, 209.10

POLYETHYLENE (PE) CULVERT

CELL CLASS.

NO. 334433C

0.075" / 14

0.075" / 14

0.060" / 16

0.105" / 12

ALUMINUM

INCH / GAGE

ALUMINUM & STEEL CULVERT CORRUGATIONS

SHALL CONFORM TO THE FOLLOWING:

60 0.079" / 14

0.109" / 12

INCHES

18 TO 36

SIZE

PIPE

STEEL

0.079" / 14

0.064" / 16

MIN.

12'24" 12" 12"24"

5" x 1"

5" x 1" 30"

36" 12"

12" 10'

10'

10'

11'

12'

12"

48"

36"

30"

40"

12"

12"

12"

CORRUGATED

CELL CLASS.

NO. 315412C

POLYETHYLENE (PE) CULVERT

PER ASTM D 3350

2 2/3" X 0.5"

2 2/3" X 0.5"

CORRUGATIONS

18"

PIPE

SIZE

Ø

12"

MIN.

COVER

10'

CELL CLASS.

NO. 324420C

MAXIMUM FILL

HEIGHT IN FEET

12'

PIPE

SIZE

Ø

18" 12"

MIN.

COVER

28'22'

26' 21'

25'

21'

22'

31'

27'

28'

CELL CLASS.

NO. 335434C

MAXIMUM FILL

HEIGHT IN FEET

18' 24'

RIBBED

TYPICAL CULVERT INSTALLATION FOR DITCH RELIEF

CONSTRUCT DITCH BLOCK OF ROCK

WITH 12" MAX. AVERAGE DIAMETER.

HEIGHT OF DITCH BLOCK SHALL BE NO

GREATER THAN THE TOP OF THE CULVERT

TYPICAL CATCH BASIN WITH DITCH BLOCK

25' TAPER EACH SIDE

120°

60°

B E

G

N

P

O

J E

C T

E N

D

P

R O

J E

C T

C

L

CULVERT SKEW DIAGRAM

PLACE CULVERT IN ALIGNMENT WITH THE NATURAL STREAM

CHANNEL. WHERE NO CHANNEL IS APPARENT INSTALL

CULVERTS AT SKEWS SHOWN ON THE DRAWINGS OR AS DIRECTED BY THE C.O.

MINIMUM CULVERT GRADES SHALL BE 5% OR 1/2 OF THE TRIBUTARY DITCH GRADE.

CAMBER WILL DEPEND ON SITE CONDITIONS. MAXIMUM CAMBER IS 2% (STEEL OR ALUMINUM

CULVERTS) OR 1% (POLYETHYLENE CULVERTS) OF CULVERT LENGTH BY NO MORE THAN 2.5-IN AT

CENTER.

CATCH BASIN CONSTRUCTION IS REQUIRED WHEN SHOWN ON THE DRAWINGS AND AT ALL

INSTALLATIONS WHERE THE INLET IS LOWER THAN NATURAL GROUND.

CULVERT INLETS AND OUTLETS SHALL EXTEND 24-IN BEYOND THE TOE OF THE FILL UNLESS AGREED

TO BY THE C.O.

MINIMUM COVER OVER CULVERTS UNLESS OTHERWISE SHOWN ON THE DRAWINGS IS 12-IN.

PLACE RIPRAP AT SITES SHOWN ON THE DRAWINGS OR AS DIRECTED BY THE C.O. MINIMUM WIDTH

OF RIPRAP IS 1.5 PIPE DIAMETERS. CLASS 4 (MIN) SIZE.

THE CONTRACTOR SHALL PROVIDE THE C.O. A LIST OF AS- SLOPE STAKED CULVERT LENGTHS AND

LOCATIONS.

7.

8.

5.

6.

4.

3.

2.

1.

NOTES

MINIMUM WIDTH OF APRON

IS 2 PIPE DIAMETERS.

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

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ALASKA REGION

2020 ROAD

MAINTENANCE

IDIQ

TONGASS NATIONAL

FOREST

TYPICAL CULVERT

INSTALLATION

01/30/2020

X.XXX

9 17

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GENERAL NOTES:

TREES TO BE CUT FOR SILL AND BACKWALL LOGS

WILL BE DESIGNATED IN THE FIELD BY THE C.O.

ATTACH BRIDGE TO SILL AS RECOMMENDED BY

THE MANUFACTURER.

ABUTMENT LOCATION AND ELEVATIONS WILL BE

STAKED IN THE FIELD BY THE C.O.

MECHANICALLY PLACED EMBANKMENT, WHEN

REQUIRED, IS CONSIDERED INCIDENTAL TO

BRIDGE INSTALLATION. PLACE IN ACCORDANCE

w/ SPECIAL ROCK EMBANKMENT & ROCK

BUTTRESS (FP-14 SECTION-252).

PROVIDE CONNECTION BETWEEN BRIDGE HALVES

IN ACCORDANCE WITH MANUFACTURER'S DESIGN,

INCLUDING DIAPHRAGMS AND ANGLE BRACES

BETWEEN GIRDERS AND RUNNING PLANKS ALONG

CENTER OF DECK.

FOR BRIDGE FURNISHED BY THE GOVERNMENT,

THE CONTRACTOR IS RESPONSIBLE FOR

REMOVAL AND TRANSPORTATION OF THE BRIDGE

FROM ITS PRESENT LOCATION.

SEE PLAN & PROFILE SHEETS FOR FISH TIMING

REQUIREMENTS.

EROSION CONTROL PLAN IS REQUIRED IF

DIRECTED BY THE C.O. (FP-14 SECTION-157).

LOG BACKWALL - LONG ENOUGH TO

CONTAIN APPROACH FILL

MECHANICALLY PLACED EMBANKMENT

ROAD EDGE

TOE OF FILL

TAPER RIPRAP TO DESIGNED FILL

F

L

O

W

12"

A T

C H

D E

S I G

N E

D

F

I L

L

STREAM THALWEG

MODULAR BRIDGE

TOE OF FILL

ROAD EDGE

ROAD CENTERLINE

INSTALL BRIDGE TO MATCH FINISH ROAD GRADE,

CUT/FILL AS REQUIRED

12" MIN.

12" MIN. (WITH RIPRAP)

36" MIN. (W/OUT RIPRAP)

M

I N

MODULAR BRIDGE

OBSERVED HIGH WATER MARKS/Q50

MECHANICALLY PLACED EMBANKMENT, SEE (FP-14 SECTION-252).

SEE (FP-14 SECTION-705.04) FOR GRADATION. PLACE ALONG STREAM

BANK AS NEEDED FOR SLOPE PROTECTION WHERE REQUIRED BY THE C.O.

PLACE BOTTOM OF GIRDER

5' MIN. ABOVE OBSERVED

HIGH WATER MARKS

EXISTING GRADE

1" MINUS GRAVEL LEVELING COURSE

SILL LOG, 18" MIN. Ø OR AS DIRECTED BY THE C.O.

PROVIDE LEVEL BEARING AREAS ON TOP OF THE LOG

SILLS FOR THE BEARING PLATES TO REST. THE

BEARING PLATES SHALL BE COMPLETELY SUPPORTED

ON THE LOG SILL.

EXCAVATE FOR SILL CONSTRUCTION,

FILL W/ BORROW AND/OR

SUITABLE ROCK EXCAVATION

BACKWALL LOGS, 12" MIN. Ø OR

AS DIRECTED BY THE C.O.

BORROW AND/OR SUITABLE ROCK EXCAVATION

1% (M

IN

) T

O 5% (M

AX) B

RID

GE G

RADE

PLAN

PROFILE

MODULAR BRIDGES

ROAD

XXXX XX.XX+XXX X X

(FT)

LENGTHL-STA/

MP

FURNISHED BY

CONTR. GOV'T

XX XX

PRESENT LOCATION

(IF GOV'T FURNISHED)

PLAN &

PROFILE

SHEET

BORROW AND/OR SUITABLE ROCK

EXCAVATION

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

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ALASKA REGION

2020 ROAD

MAINTENANCE

IDIQ

TONGASS NATIONAL

FOREST

MODULAR BRIDGE

INSTALLATION

01/30/2020

X.XXX

10 17

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RUNNING PLANK

CUPPED PLANKS WILL BE PLACED WITH THE CONVEX SIDE UP.

RECESS NAIL HEAD 3/8".

AT 3 ft SPACING THROUGHOUT LENGTH.

SPIRAL SPIKE, 2 AT PLANK ENDS. STAGGER

NOTE: ON RAINIER BRIDGES NAIL RUNNING

AND DECK PLANKS ONLY TO CROSS TIES.

RUNNING PLANK TO DECK CONNECTION

USE 60d RING SHANK OR DOUBLE

EXTEND RUNNING PLANKS TO

COVER TOP OF BACKWALL

WHERE POSSIBLE.1

-1

/2 in

1-1/2 in

WHICH TERMINATE AT END OF

CHAMFER RUNNING PLANK ENDS

BRIDGE DECK

/8 in

DECK PLANK

GENERAL NOTES

1. VERIFY BRIDGE LENGTH AND WIDTH PRIOR TO ORDERING RUNNING PLANK

MATERIALS.

2. NEW RUNNING PLANKS SHALL BE UNTREATED DOUG FIR, HEMLOCK,

OR SITKA SPRUCE, No. 2 or BETTER, ROUGH FINISH 3" X 12".

3. ALL HARDWARE SHALL BE GALVANIZED.

4. CLEAN DECK SURFACE OF ROCKS, SAND, DIRT, AND OTHER MATERIAL PRIOR TO

REMOVING EXISTING PLANKS AND INSTALLATION OF NEW RUNNING PLANKS.

PRESSURE WASHING IS NOT AN ACCEPTABLE MEANS OF CLEANING A BRIDGE.

MATERIAL REMOVED FROM A BRIDGE WILL BE DEPOSITED AWAY FROM ANY LIVE

STREAM AS DIRECTED BY THE ENGINEER.

5. STAGGER BUTT JOINTS BETWEEN SUCCESSIVE RUNNING PLANKS.

6. PRESERVATIVE TREATMENT SHALL BE COPPER NAPTHENATE. TREAT MATERIAL IN

ACCORDANCE WITH AWPA C1 AND C2 ABOVE GROUND USE.

7. TREAT ALL FIELD DRILLED HOLES IN ACCORDANCE WITH AWPA M4.

8. DISPOSE OF EXCESS AND WASTE MATERIALS OFF FOREST SERVICE LAND.

9. MINIMUM LENGTH OF PLANK IS 10 FEET.

10. LEAVE 4"-6" GAP BETWEEN OUTSIDE PLANKS AND TREATED CURBING.

COVER BACKWALL IF POSSIBLE

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

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2020 ROAD

MAINTENANCE

IDIQ

TONGASS NATIONAL

FOREST

BRIDGE RESURFACING

01/30/2020

X.XXX

11 17

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DOWNGRADE (20% MAX.)

TOE OF EXISTING FILL

EDGE OF EXISTING FILL

BOTTOM OF DITCH

4:1

4:1 3:1

EXCAVATED MATERIAL

CLASS 3 RIPRAP

DOWNGRADE (12% MAX.)

TOE OF EXISTING FILL

EDGE OF EXISTING FILL

6:1

6:1

4:1

EXCAVATED MATERIAL

.7

' TO

.0

25° 20°

DOWNGRADE (12% MAX.)

CUT SLOPE & DITCH

MINIMUM GRADE OF WATERBAR CHANNEL SHALL BE 1/2 THE DITCH

GRADE, BOTTOM WIDTH SHALL BE MIN. OF 5 FEET.

1. OLD CULVERTS SHALL BECOME THE PROPERTY OF THE CONTRACTOR

AND SHALL BE REMOVED FROM GOVERNMENT PROPERTY FOR DISPOSAL.

2. EXCAVATED MATERIAL SHALL BE PLACED AS SHOWN ON THE

3. ALL DISTURBED AREAS SHALL BE SEEDED AND FERTILIZED

4. MATERIAL WHICH CAN NOT BE PLACED ON THE ROADWAY SHALL BE

LOADED, HAULED, AND DISPOSED OF AS SHOWN ON THE DRAWINGS OR

DIRECTED BY THE C.O.

5. OBSTRUCTED DITCH LINES SHALL BE CLEANED TO A MIN. DEPTH OF

20 INCHES, AND CROSS SLOPES SHALL BE 1:1.5.

6. RIPRAP SHALL BE SORTED FROM EXCAVATED ROADWAY MATERIALS.

EXCAVATE ROAD PRISM 3 FEET OR TO ORIGINAL GROUND.

ON ROADWAY AND IN THE DITCHLINE AGAINST THE CUTBANK (IF ANY)

ONLY.

A DITCHBLOCK SHALL BE CREATED BY PLACING EXCAVATED MATERIAL

AT THE SAME OVERALL HEIGHT ON THE DOWNGRADE SIDE OF WATERBAR

5' MIN.

5' MIN.

SKEW ANGLE OF WATERBAR SHALL BE BETWEEN 20° AND 45°

AS SPECIFIED IN THE PLANS OR DESIGNATED BY THE ENGINEER.

PURPOSE: FOR NORMAL TO HIGH CLEARANCE VEHICLE. USE TO REMOVE ROAD SURFACE

WATER ACCUMULATION AND TO PROVIDE AN OVERFLOW CHANNEL IN CASE A CULVERT

BECOMES PLUGGED. THIS WATERBAR IS NOT TO BE USED WHERE ROAD GRADES EXCEED 12%.

PURPOSE: FOR HIGH CLEARANCE VEHICLES ONLY. USE TO MANAGE

WATER FLOW OF ANNUAL CLASS 4 AND CLASS 5 STREAM CROSSINGS

TO PROVIDE DITCH RELIEF FOR SEEPS, SPRINGS OR WHEN REMOVING

CULVERTS. THE DRIVEABLE WATERBAR MUST INTERSECT THE INSIDE

DITCH AND PROVIDE A DITCHBLOCK. THE WATERBAR BOTTOM AND

SIDESLOPES MAY BE ARMORED AND SHALL BE AS WIDE AS THE UP-

STREAM CHANNEL BUT NO LESS THAN 5'.

DOWNGRADE (20% MAX.)

TOE OF EXISTING FILL

EDGE OF EXISTING FILL

BOTTOM OF DITCH

4:1

4:1 3:1

EXCAVATED MATERIAL

CLASS 3 RIPRAP

DRAWINGS. ALL SLOPES SHALL BE CONSTRUCTED AS DRAWN.

AS SPECIFIED IN THE CONTRACT.

5' MIN.

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

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ALASKA REGION

2020 ROAD

MAINTENANCE

IDIQ

TONGASS NATIONAL

FOREST

TYPICAL DRIVEABLE

WATERBAR

01/30/2020

X.XXX

12 17

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AutoCAD SHX Text %%uTYPE II DRIVEABLE WATERBAR

AutoCAD SHX Text %%uPLAN VIEW

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DOWNGRADE

EXCAVATED MATERIAL

DOWNGRADE

TOE OF EXISTING FILL

1:1.5

1:

1.

1:

1.

DOWNGRADE

EC

EC

EC

EC

DOWNGRADE

TOE OF EXISTING FILL

DOWNGRADE

EXCAVATED MATERIAL SHALL BE PLACED AT LEAST 3 FEET

FROM THE EDGE OF ANY FILL SLOPE OR DITCHLINE, AND

1:

1.

EXCAVATED MATERIAL

DOWNGRADE

MINIMUM GRADE OF WATERBAR CHANNEL SHALL BE 1/2 THE DITCH

GRADE, BOTTOM WIDTH SHALL BE MIN. OF 5 FEET.

1. OLD CULVERTS SHALL BECOME THE PROPERTY OF THE CONTRACTOR

AND SHALL BE REMOVED FROM GOVERNMENT PROPERTY FOR DISPOSAL.

2. SLASH AND DEBRIS SHALL BE REMOVED FROM STREAM CHANNEL

ABOVE AND BELOW THE ROAD PRISM AS FAR AS EQUIPMENT CAN

REACH FROM ROADWAY. DEBRIS SHALL BE PLACED WHERE IT

CAN NOT RE-ENTER CHANNEL.

3. EXCAVATED MATERIAL SHALL BE PLACED AS SHOWN ON THE

DRAWINGS. NO SLOPES SHALL BE STEEPER THAN 1:1.5.

4. ALL DISTURBED AREAS SHALL BE SEEDED AND FERTILIZED

AS SPECIFIED IN SECTION 625.

FLO

W

EXCAVATED MATERIAL

TOE OF EXISTING FILL

CULVERTS SHALL BE REMOVED AND THE ROAD PRISM EXCAVATED TO

THE STREAMBED'S ORIGINAL ELEVATIONS. EXCAVATE THE DRAINAGE

CHANNEL AND A MINIMUM OF 3 FEET BEYOND THE ORIGINAL STREAM

BANKS.

5. MATERIAL WHICH CAN NOT BE PLACED ON THE ROADWAY SHALL BE

LOADED, HAULED, AND DISPOSED OF AS SHOWN ON THE DRAWINGS OR

DIRECTED BY THE C.O.

6. OBSTRUCTED DITCH LINES SHALL BE CLEANED TO A MIN. DEPTH OF

20 INCHES, AND CROSS SLOPES SHALL BE 1:1.5.

ON ROADWAY AND IN DITCHLINE AT SAME OVERALL HEIGHT ON THE

DOWNGRADE SIDE OF WATERBAR ONLY. PLACE EXCAVATED MATERIAL

DITCHBLOCK SHALL BE CREATED BY PLACING EXCAVATED MATERIAL

NO CLOSER THAN 3 FEET FROM ANY FILL SLOPE.

7. RIPRAP SHALL BE SORTED FROM EXCAVATED ROADWAY MATERIALS.

CLASS 3 RIPRAP

CLASS 3 RIPRAP

1:

1.

FLO

W

EXCAVATED MATERIAL

O

RIG

IN

AL S

TREAM

G

RAD

E

O

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IN

AL S

TREAM

G

RAD

E

EXCAVATE ROAD PRISM 3 FEET OR TO ORIGINAL GROUND.

10 ft.

(MIN.)

10 ft.

(MIN.)

1:1.5

10 ft.

(MIN.)

AT LEAST 10 FEET FROM THE EDGE OF THE WATERBAR.

ON ROADWAY AND IN DITCHLINE AT SAME OVERALL HEIGHT ON THE

DOWNGRADE SIDE OF WATERBAR ONLY. PLACE EXCAVATED MATERIAL

DITCHBLOCK SHALL BE CREATED BY PLACING EXCAVATED MATERIAL

NO CLOSER THAN 3 FEET FROM ANY FILL SLOPE.

10 ft.

(MIN.)

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

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ALASKA REGION

2020 ROAD

MAINTENANCE

IDIQ

TONGASS NATIONAL

FOREST

TYPICAL NON

DRIVEABLE WATERBAR

01/30/2020

X.XXX

13 17

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NON-DRIVEABLE WATERBAR / CULVERT REMOVAL

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EXISTING STREAMS

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NON-DRIVEABLE WATERBAR / CULVERT REMOVAL

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NO STREAM CHANNEL

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1. CULVERTS SHALL BE REMOVED AND BECOME THE PROPERTY OF THE

CONTRACTOR AND SHALL BE REMOVED FROM GOVERNMENT PROPERTY FOR

DISPOSAL.

2. NO STREAMBED EXCAVATION SHALL BE ALLOWED OUTSIDE THE ROAD PRISM.

STREAMBED EXCAVATION WITHIN THE ROAD PRISM SHALL BE KEPT TO THE

MINIMUM REQUIRED TO RESTORE NATURAL CHANNEL GRADE AND WIDTH.

FINISHED CHANNEL ELEVATIONS, WIDTHS, AND ALIGNMENTS SHALL MATCH

NATURAL CHANNEL ELEVATIONS, BANKFULL WIDTHS, AND ALIGNMENTS.

3. EXCAVATED MATERIAL SHALL BE PLACED AS SHOWN ON THE DRAWINGS.

PLACE EXCAVATED MATERIAL NO CLOSER THAN 1 FOOT FROM ANY FILL

SLOPE. MATERIAL WHICH CANNOT BE PLACED ON THE ROADWAY SHALL BE

LOADED, HAULED, AND DISPOSED OF AS SHOWN ON THE DRAWINGS OR

DIRECTED BY THE CO.

A. DISPOSAL METHOD A - SLOPES OF EXCAVATED MATERIAL SHALL BE NO

STEEPER THAN 1V:1.5H.

B. DISPOSAL METHOD B - SLOPES OF EXCAVATED MATERIAL SHALL BE NO

STEEPER THAN 1V:3H.

4. ALL DISTURBED AREAS SHALL BE SEEDED AND FERTILIZED AS SPECIFIED IN

SECTION 625.

5. ROAD INDUCED SLASH AND DEBRIS SHALL BE REMOVED FROM THE STREAM

CHANNEL UPSTREAM AND DOWNSTREAM OF THE ROAD PRISM AS FAR AS

EQUIPMENT CAN REACH FROM THE ROAD PRISM. DEBRIS SHALL BE PLACED

WHERE THEY CAN NOT RE-ENTER CHANNEL.

6. ON STREAMS GREATER THAN 6% GRADIENT, MACHINE PLACE CLASS 5 RIPRAP

AT THE DOWNSTREAM EDGE OF THE STREAM AND ROADWAY TO FORTIFY

GRADE CONTROL THROUGH THE ROAD PRISM AND TRANSITION FROM

TRAVELWAY TO NATURAL STREAMBED.

7. EXCAVATED APPROACH SLOPES SHALL BE ARMORED WITH A MINIMUM DEPTH

OF 12" OF SHOT ROCK.

8. IN LOCATIONS WHERE WATER FLOWING IN THE DITCH GOES AWAY FROM THE

STREAM, CREATE A SHOT ROCK DITCH BLOCK EXTENDING FROM THE ROAD

SHOULDER INTO THE CUT SLOPE. THE TOP OF THE DITCHBLOCK SHALL BE

EQUAL TO THE NEIGHBORING ROAD SURFACE.

9. MACHINE PLACE CLASS 5 RIPRAP 6 TO 8 FEET WIDE ACROSS STREAM TO

PROVIDE HARDENED SURFACE FOR OHV TRAFFIC AND TO STABILIZE

STREAMBED MATERIAL.

10. WHERE DOWNGRADE EXCEEDS 12% OHV CUT SLOPE SHALL BE 1V:2H ON

DOWNHILL SIDE.

DOWNGRADE

3ft.

(MIN.)

3ft.

(MIN.)

1V:3H

1V:1.5H

TOE OF EXISTING FILL

DOWNGRADE

FLO

W

OHV TRAVEL WAY

BANKFULL

WIDTH

ft

M

IN

IF STREAM GRADIENT >6% PLACE

CLASS 3 RIPRAP FOR GRADE CONTROL

EXCAVATED MATERIAL

DISPOSAL METHOD A

(METHOD B ACCEPTABLE)

EXCAVATED MATERIAL

DISPOSAL METHOD B

(METHOD A

ACCEPTABLE)

CUTSLOPE

DITCH LINE

CUTSLOPE

DITCH LINE

6 TO 8 FOOT

HARDENED CROSSING

DOWNGRADE

PIT RUN SHOTROCK

BANKFULL

WIDTH

DRAWING NOT TO SCALE

IF STREAM GRADIENT >6% PLACE

CLASS 3 RIPRAP FOR GRADE CONTROL

3ft.

(MIN.)

EXCAVATED MATERIAL

DISPOSAL METHOD A

(METHOD B

ACCEPTABLE)

CUTSLOPE

CUTSLOPE

DITCHBLOCK

6 FOOT

HARDENED CROSSING

1V:1.5H

FLO

W

DITCH LINE

DITCH LINE

DOWNGRADE

1V:3H

1V:2H

1V:3H

O

RIG

IN

AL S

TREAM

G

RAD

E1V:2H

1V:3H

1V:2H

1V:3H

O

RIG

IN

AL S

TREAM

G

RAD

E

1V:2H

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

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ALASKA REGION

2020 ROAD

MAINTENANCE

IDIQ

TONGASS NATIONAL

FOREST

OHV FORD CROSSING

01/30/2020

X.XXX

14 17

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FORD FOR OHV STREAM CROSSING

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GENERAL NOTES

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Buttress rock

Place Geotextile As Directed By The CO

(Incidental to Buttress construction)

Existing Road Surface

Slope to match top of cut to top of Rock Buttress

Rock Buttress, slope 1:4

20 cubic yards - mechanically placed Buttress rock

Beginning and end of Rock Buttress to be staked by the CO.

Construct rock buttress from durable angular rock, individually placed in interlocking manner.

2. Endhaul excavation (incidental to Buttress construction) to disposal site

Construct XXXX. long Rock Buttress.

4.

20 cubic yards - end hauled excavation

25 cubic yards - common excavation

Heigth of Buttress to be XX ft.

3.

ROAD XXXX

1.

in Rock Pit at MP XXXX, Rd. XXXX and in location designated by the C.O.

4 ft.

XX ft.

FILL SLOPE

CUT SLOPE

Use Geotextile. Type IV (A,B, or C). Refer to specification 714.01.

Place Geotextile according to specification 207.05. Geoetxtile is incidental to Buttress construction.

5.

Notes:

Construct 1 ft. deep v-ditch along face of Buttress as shown on drawing (incidental to

Buttress construction).

6.

Estimated quantities:

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

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ALASKA REGION

2020 ROAD

MAINTENANCE

IDIQ

TONGASS NATIONAL

FOREST

TYPICAL ROCK

BUTTRESS

01/30/2020

X.XXX

15 17

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X.

15'

THIS AREA TO BE CLEARED ONLY IF

ROAD

DEVELOPMENT PLAN

TO THE BACKWALL BENCH.

REHABILITATION PLAN

REQUIREMENT IS WAIVED BY THE COR.

OF THE ACCESS ROAD WITH ROAD NO. 6030 AND BY ROUGHING UP THE ACCESS

THE ACCESS ROAD WILL BE OBLITERATED BY CUTTING A DITCH AT THE JUNCTION

PROVISIONS FOR FUTURE QUARRY ACCESS WILL BE PROVIDED UNLESS THIS

ACCESS ROAD SURFACES, WILL BE SEEDED AND FERTILIZED IN ACCORDANCE WITH

ALL DISTURBED AREAS, SUCH AS OVERBURDEN PILES, BENCH SURFACES, AND

A MINIMUM OF 12-IN OF OVERBURDEN WILL BE EVENLY SPREAD OVER THE

ALL OVERSIZE ROCK WILL BE PLACED AGAINST THE SIDES OF THE QUARRY NEXT

QUARRY DEVELOPMENT PLAN

DECKED IN THE MUSKEG LEFT OF 27+20

ALL MERCHANTABLE TIMBER WILL BE REMOVED FROM THE QUARRY SITE AND

OVERBURDEN WILL NOT BE PLACED IN THE SMALL STREAM BORDERING THE QUARRY.

QUARRY IS LOCATED RIGHT OF STA 27+58 ON ROAD NO. 6030

QUARRY DEVELOPMENT TYPICAL SHEET.

TEST SHOT OF APPROX. 2000 CU. YD. IS PLANNED.

DEVELOPMENT WILL COMPLY WITH THE GENERAL NOTES SHOWN ON THE PIT &

ROAD AND ROAD NO. 6030

CONTAINED BETWEEN THE ACCESS

THE OVERBURDEN CANNOT BE

TIMBER FROM QUARRY SITE

DECKED IN MUSKEG

CLEARING LIMIT FLAGGED

2+720

ROAD SURFACE.

MIN

CONTRACTOR DATE

2.

3.

4.

5.

SPECIFICATIONS.

QUARRY FLOOR.

1.

2.

3.

4.

1.

ELEV 1160

APPROX.

OBD

TOTAL POUNDS OF POWDER IN SHOT

(INCLUDING PRIMERS) = 3385 lbs.

MAX. POUNDS OF POWDER PER 8 ms DELAY = 1090

POWDER FACTOR = 1 lb. PER CUBIC YARD

NAME OF BLASTER IN CHARGE = T.J. BARRY

PLANNED SHOT DATE = JUNE 15, 1996

NUMBER OF CUBIC YARDS IN SHOT = 2670

"HI DRIVE" PRIMER WITH 125 to 250 ms DU PONT ELECTRIC

BLASTING CAP LOCATED AT

BOTTOM OF HOLE WITH ONE

3-IN x 6-IN STICK OF TOVEX

USED FOR CUSHION.

DISTRICT RANGER

MIN

15'

MIN

15'

COR

CLEARING LIMITS

DATE DATE

TYPICAL LOADED HOLE

5-FT STEMMING

3.5-IN DIA HOLE

m s

19,620 CU.YD.

TYPE OF EXPLOSIVES = TOVEX 800, 3" X 16"

SECOND

QUARRY BLASTING PLAN

RIGHT OF STA. 27+58 ON ROAD NO. 6030

THIS PLAN IS FOR THE FIRST TEST SHOT IN THE QUARRY

ACTUAL MILLESECOND DELAY USING

FIRING SEQUENCE - SEQUENCE OF DELAYS

IS THE SAME FOR ALL 5 ROWS

PRODUCTION

STA 27+58

LOCATED IN BOTTOM OF HOLE

TOTAL NUMBER OF HOLES IN SHOT = 45

TYPE OF PRIMER & LOCATION IN HOLE =

40-FT

15-FT MIN

CROSS SECTION VIEW

3% SLOPE

68%

OBD

ACCESS

ROADLC

CL

72%

SOIL

STEMMING = 5-FT

BURDEN = 8-FT

DENSITY = 20 lbs./cu. yd.

2" DIA STICK OF HI DRIVE

HOLE DEPTH = 10-FT to 30-FT

BOREHOLE SIZE = 3.5-IN

SPACING = 10-FT

APPROX.

ELEV 1260

OBD

RD. NO. 6030

PLAN VIEW

ESTIMATE OF VOLUME = 24,850 CU. YD.

OVERBURDEN

ACCESS ROAD

STREAM

18-IN CMP

15-FT MIN

SHOT

SEQUENTIAL TIMER

16 3

SEQUENTIAL TIMER

FR

EE FA

C E m s m s m s m s m s m s m s m s

RD. NO. 6030

PRODUCTION

SHOT

TEST SHOT

13,080 CU.YD.

FIRST

FLOOR

QUARRY

RO

CK F

AC

E

EXIST.

OVERBURDEN

M A X.

NOTES

ALL PITS AND QUARRIES SHALL BE APPROVED IN WRITING BY THE C.O. PRIOR TO

EXPLORATION, CLEARING OR DEVELOPMENT.

REMOVE ALL OVERBURDEN TO SOLID ROCK FOR A MINIMUM DISTANCE OF 15'

FROM THE WORKING FACE.

SLOPE THE CUT BANK OF THE OVERBURDEN TO THE NATURAL ANGLE OF REPOSE

BUT IN NO CASE STEEPER THAN 1:1.

WITHIN THE CLEARING LIMITS:

- MAXIMUM STUMP HEIGHT SHALL BE IN ACCORDANCE WITH SPECIFICATIONS.

- STABLE TREES UP TO 6" dbh NEED NOT BE CUT IF THEY WILL NOT INTERFERE

WITH BACK SLOPE STABILITY.

- STUMPS AND BRUSH MAY BE LEFT IN PLACE, EXCEPT THAT ALL STUMPS THAT

PROTRUDE FROM EXCAVATED BANKS OR THAT HAVE THE POTENTIAL TO BECOME

DISLODGED AT ANY LATER DATE SHALL BE REMOVED.

DISPOSE OF OR STOCKPILE FOR LATER USE ALL OVERBURDEN, CLEARING,

MERCHANTABLE TIMBER AND GRUBBING DEBRIS AS SHOWN ON THE QUARRY

DEVELOPMENT PLAN.

FELL ALL DEAD TREES AND SNAGS WHICH ARE SUFFICIENTLY TALL TO REACH THE

WORK AREA.

LEAVE THE PIT/QUARRY IN A NEAT, ORDERLY AND WELL-DRAINED CONDITION.

REMOVE ALL OVERHANGS AND LOOSE ROCK.

AFTER EXCAVATION IS COMPLETE CLEAN THE AREA AND LEAVE AS SHOWN ON

THE QUARRY DEVELOPMENT PLAN. TREAT ANY ACCESS ROAD AS SHOWN ON THE

QUARRY DEVELOPMENT PLAN.

TEST SHOTS OF 1300 to 2600 CUBIC YARDS ARE REQUIRED AT ALL QUARRY SITES

IF DESCRIBED IN THE SPECIFICATIONS.

LEAVE NO MORE THAN 5% BY VOLUME OF OVERSIZE MATERIAL IN THE QUARRY.

PROVISIONS FOR FUTURE QUARRY DEVELOPMENT ACCESS WILL BE PROVIDED,

UNLESS THIS REQUIREMENT IS WAVED BY THE CO.

INSTALL AND MAINTAIN A COMMERCIALLY AVAILABLE RAIN GAUGE MEASURING IN

UNITS OF INCHES AND FRACTIONS OF INCHES IN ACCORDANCE WITH SECTION

205.08.

HAUL WILL NOT BE ALLOWED BEYOND DESIGNATED SOURCES UNLESS

OTHERWISE SHOWN ON THE DRAWINGS OR AGREED TO BY THE CO.

SEED AND FERTILIZE ALL DISTURBED AREAS SUCH AS OVERBURDEN PILES AND

BENCH SURFACES IN ACCORDANCE WITH SECTION 625.

SAMPLE QUARRY DEVELOPMENT PLAN SAMPLE QUARRY BLASTING PLAN

HAUL DIAGRAM

E.O.P.

MP XX.XX

E.O.P.

MP XX.XX

RD. XXXXX RD. XXXXX

R D

X

X X

X X

R

D

X

X

X

X

A

F

MP XX.XX =

MP XX.XX

LEGEND

DESIGNATED MATERIAL SOURCE

(ROCK QUARRY)

DIRECTION OF HAUL

MP

MILE POST

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

13.

11.

12.

14.

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

1/3 0/2

0 1 3:

C

LA

VO

IE

C

:\U

SE

RS

\C

LA

VO

IE

\B

OX

\01

. C

AS

EY

.L

AV

OI

E W

OR

KS

PA

CE

\A

UT

OC

AD

\R

\U

PD

AT

ED

\R

OA

D_

TY

PI

CA

LS

_ID

IQ

FY

.D

W G;

(R10)

ALASKA REGION

2020 ROAD

MAINTENANCE

IDIQ

TONGASS NATIONAL

FOREST

PIT & QUARRY

DEVELOPMENT

01/30/2020

X.XXX

16 17

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